Hay-stacker.



H. J. LOTZ.

HAY STACKER.

APPLICATION ms!) 050.13. 1915.

1,1 99,579. Patented Sept. 26,1916.

ZZQZZdZZ Witnesses Inventor,

r Attorneys,

FFEQ

HENRY J. LO'IZ, OF SELAI-I, WASHINGTON.

HAY-STACKER.

Specification of Letters Patent. P t t d Sept. 26, 1916.

Application filed December 13, 1915. Serial No. 66,556.

To all whom it may concern:

Be it known that I, HENRY J. Low, a citizen of the United States, residing at Selah, in the county of Yakima and State of lVashington, have invented a new and useful Hay-Stacker, of which the following is a specification.

The present invention appertains to hay stackers, and aims to provide a novel and improved crane adapted for elevating and carrying hay onto a stack.

It is the object of the invention to provide a hay stacking crane of novel and improved construction, whereby it will be effective for the intended purposes, the construction being comparatively simple and inexpensive, and also being efiicient, practical and serviceable in use.

With the foregoing and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope of what is claimed without departing from the spirit of the invention.

The invention is illustrated in the accompanying drawing, wherein Figure 1 is a side elevation of the improved crane, portions being broken away. Fig. 2 is a sectional view taken on the line 22 of Fig. .1 and illustrating the boom or crane arm in plan, portions thereof being broken away. Fig. 8 is an enlarged crosssection taken on the line 3-3 of Fig 2. Fig. 1 is a perspective view on an enlarged scale of the adjusting device for holding the carriage of the boom in adjusted position.

In carrying out the invention, there is provided an upright mast 1 of suitable height and having its lower end journaled for rotation upon a suitable base or frame 2;

The mast 1 is mounted for rotation with a ring or collar 3 spaced suitably above the base 2, and braces or props 4 are disposed between the collar 3 and base 2 for holding the mast in vertical position.

The arm or boom 5 of the crane is pivoted to the mast 1 above the collar 3, and embodies a pair of channel iron side members 6 having upper and lower flanges projecting toward one another. The channel members 6 straddle or stand astride the mast 1 and are pivoted thereto by means of a-pivot pin 7 engaged through the members 6 and mast 1, whereby the boom 5 can be swung in a vertical plane. Spacing blocks 8 are secured between the members 6 to securely fasten said members together, one of the blocks 8 being arranged at the free end of the boom 5, and the other block being dis-v posed between the ends thereof.

The boom 5 is swung upwardly and downwardly, and to this end, a bail or clevis 9 is terminally pivoted to the free end of the boom 5, and one end of a cable 10 is connected to the clevis 9, The cable 10 passes over a pulley wheel 11 carried by the upper end of the mast 1, and from'the pulley wheel 11, the cable extends downwardly to'the base 2, so that the said cable can be raised and lowered for lowering and raising the boom, respectively.

A carriage or block 12 is mounted for longitudinal sliding movement between the members 6 of the boom 5 and is guided for longitudinal movement by the flanges of said members 6. The carriage 12 is movable between the blocks 8, the members 6 forming a guide for the carriage, and the carriage has a pair of outstanding pins or lugs it at each side and adjacent its ends. These pins Work in longitudinal slots 15 provided in the members 6 between the blocks 8 thereby to assist the flanges of the members 6 in guiding the carriage for longitudinal movement along the boom. The carriage or block 12 has a pulley wheel or sheave 13 mounted for rotation therein, and a cable 16 is passed over the pulley wheel 13 and has one end attached to the carriage 12, to provide a loop 17 depending from the carriage and its pulley wheel 18. A pair of pulley blocks 18 are mounted upon the loop 17 and have depending hooks. 19

for engaging the forks, grapples, or other devices which are engaged to the hay. The pulley blocks 18 may be separated and lowered when the cable 16 is slackened, so that the blocks 18 can be properly applied to the hay which is to be lifted. The cable 16 is passed over a pulley wheel 20 carried by the mast 1 adjacent its upper end, and from the pulley wheel 20 the cable 16 is extended downwardly and around a pulley wheel or sheave 20 attached to the base 2, so that a draft animal may be hitched to the cable 16 for pulling the same.

The means for adjusting the carriage or block 12 embodies a cable or flexible element 21 having one end attached to the carriage 12. This cable 21 is passed around a pulley wheel or sheave 22 disposed between the members 6 and attached to the block 8 adjacent the free end of the boom. The cable 21 is extended from the pulley wheel 22 past the carriage 12 to a pulley wheel or sheave 23 supported between the members 6 adjacent the mast 1. The pulley wheel or sheave 23 is pivotally connected to a ring or collar 24 embracing the mast 1 adjacent the pivot pin 7. The cable 21 extends downwardly from the pulley wheel 23 and passes through a vertical or longitudinal groove 25 with which the mast 1 is provided, so that the cable 21 can pass behind the collar or ring 8. This prevents the tangling of the cable 21 with the braces 1 when the mast 1 is turned, the cable 21 being held within the groove 25 by the collar or ring 3.

An adjustable device 26 is employed for adjustably holding the lower end of the cable 21. This device 26 embodies a vertical rod 27 having its upper end attached to the lower end of the cable 21 and disposed adjacent the mast 1 slightly aboye the base 2. The rod 27 is provided at longitudinally spaced points with opposite a'lining horizontal or transverse rods 28. The vertical rod 27 is normally disposed between a pair of upright chocks or members 29 secured to the mast 1 at one side thereof, and the chocks or members 28 have T-shaped recesses 30 for receiving the transverse rods 28. The recesses 30 provide downwardly projecting hooks 31 into which the rods 28 are engageable upwardly to be held thereby.

In operation, when the cable 16 is slackened, the loop 17 is allowed to drop for lowering the pulley blocks 18, and said pulley blocks may then be properly applied to the hay which is to be raised, the boom 5 being swung properly over the hay, since the mast 1 can turn. Then when the cable 16 is pulled, the blocks 18 will be raised for elevating the hay, and the boom 5 can be swung for moving the hay over the stack,- in which event the hay can be released to fall onto the stack. The boom 5 can be swung to the desired height by manipulating the cable 10 as will be apparent, so that the hay stack can be properly built up, and the boom can be swung to deposit the hay on the various portions of the stack. The carriage 12 may also be moved longitudinally of the boom for facilitating the proper positioning of the hay upon the stack. To adjust the carriage 12, the rod 27 is lowered slightly to disengage the respective rod 28 from the hooks 31, and then by moving the rod 27 outwardly away from the mast 1, said rod can be either raised or lowered for correspondingly adjusting the carriage 12. When the carriage 12 is brought to the desired new position, the rOd 27 is moved between the members 29, and the respective rod 28 is engaged with thehooks 31. This will hold the carriage 12 in its adjusted position. When the rod 27 is lowered, the cable 21 is pulled for drawing the carriage 12 toward the free end of the boom, and when the rod 27 is raised, the carriage 12 is allowed to move away from the free end of the boom. The device 26 provides a simple and effective means for adjustably holding the cable 21.

The present crane enables the hay to be stacked quickly and conveniently, and carries out the desired objects in an admirable manner.

Having thus described the invention, what is claimed as new is:

A hay stacking crane comprising a mast, a boom embodying a pair of channel side members straddling and pivoted to the mast and spacing members between the side members, the side members of the boom having longitudinal slots between the spacing members, a carriage movable longitudinally between the side members of the boom and having portions working in said slots, a hoisting cable applied to said carriage, and a cable applied to the boom for adjustlng said carriage.

In testimony that I claim the foregoing as my own, I have hereto aflixed my signature in the presence of two witnesses.

HENRY J. LOTZ.

Witnesses ALBERT E. TREAT, JOHN H. NEEDHAM.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G. 

